[JayChicago]

That sounds like a good idea. A vacuum leak should affect engine performance most during low throttle/high vacuum. But that brings up a question I have had. What's a good way to search for vacuum leaks?

I used to do it by spraying starting fluid around possible leak sources. But last couple times I did that on other cars I sprayed fluid directly into the air intake as a test of the test, and it did not increase RPM much, if anything slowed RPM. Is starting fluid not as volatile as it used to be? Corporate safety experts and lawyers dictating a change to the chemical formula?

I read someone suggest using an unlit propane torch. But that scares me a little, have not tried it.